CVE-2023-46049: Null Dereference (CVSS 5.3)

Description

LLVM 15.0.0 has a NULL pointer dereference in the parseOneMetadata() function via a crafted pdflatex.fmt file (or perhaps a crafted .o file) to llvm-lto. NOTE: this is disputed because the relationship between pdflatex.fmt and any LLVM language front end is not explained, and because a crash of the llvm-lto application should be categorized as a usability problem.

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CVSS v3.1 Score

5.3

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Weakness Type (CWE)

CWE-476 CWE-476

References

Other References

http://seclists.org/fulldisclosure/2024/Jan/66 https://github.com/llvm/llvm-project/issues/67388 https://llvm.org/docs/Security.html http://packetstormsecurity.com/files/176820/llvm-LLVM-15-Null-Pointer.html http://seclists.org/fulldisclosure/2024/Jan/66 https://github.com/llvm/llvm-project/issues/67388 https://llvm.org/docs/Security.html

Frequently Asked Questions

What is CVE-2023-46049? +

LLVM 15.0.0 has a NULL pointer dereference in the parseOneMetadata() function via a crafted pdflatex.fmt file (or perhaps a crafted .o file) to llvm-lto. NOTE: this is disputed because the relationship between pdflatex.fmt and any LLVM language front end is not explained, and because a crash of the llvm-lto application should be categorized as a usability problem. It has a CVSS v3.1 base score of 5.3 (MEDIUM).

How severe is CVE-2023-46049? +

CVE-2023-46049 has a CVSS v3.1 score of 5.3 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

How do I check if I'm vulnerable to CVE-2023-46049? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2023-46049